Chilled Water Automatic control valves 2″ and smaller shall be screwed type, of red brass material and valves 2½” and larger shall be cast iron type and flanged. Valves shall be ANSI- rated to withstand the pressures and temperatures encountered. Valves shall have stainless-steel stems and spring loaded Teflon packaging with replaceable discs. All valves… Read More »
The system shall be capable of integration with other building services level by simple hardware (electrical) methods or by the use of a computer-based communications protocol. Where a communications protocol is used, integration controllers shall provide this facility and shall be capable of integrating with systems such as fire, security, lifts, lights, etc. The integrity… Read More »
Generally any energy management control software shall provide as a minimum the following functions. Each function is detailed separately. Time Control Modes There shall be no limit to the number of time schedules each of which can have any point or number of points assigned. Each time programme shall operate over a seven-day week and allow… Read More »
The BMS provides a vehicle for the visibility of plant failure, patterns, annunciation of alarms and the reporting function. In particular it shall provide the standard functions stated below: Alarms shall be generated under the following conditions: Digital input contact change from normal to alarm condition (either open or closed). Digital input condition either matches… Read More »
Below sequence of operation is for Variable Volume Type FAHU with Plate Heat Recovery system. The system shall be variable volume package Fresh Air Handling Unit. The scope of the unit shall consist of: Supply Side accessories Intake motorized damper Panel (Pleated) Filter Bag Filter Cooling Coil Supply Fan (with VFD) Plate Heat Exchanger Intake and discharge… Read More »
The design of the BMS shall be capable of providing a range of user interfaces including the main server and client computers. All communications between the user and the system shall be in clear language, without reference to special code or codes. It shall be a fundamental requirement that the user interfaces are easy to use… Read More »